What was found
DURING HEAVY MAINTENANCE: (WASTE BOX AREA CORROSION) CORROSION FOUND REAR BARREL BOTTOM SKIN PN C01342101-115 BET FR 75-FR79 AND STRG 31L- STRG 36L.; REF AVIANOR WO# JB-3023-AOG-01, NR# 3005. REAR BARREL BOTTOM SKIN PN; C01342101-115 BET FR75-FR79 AND STRG 31L-STRG 36L REPAIRED IAW JETBLUE EC# AC26-243-01/AIRBUS REO 500-53-61-2496 AND JETBLUE EC# AC26-239-01/AIRBUS REO 500-53-61-2502. ANALYSIS TO DETERMINE ADDITIONAL REQUIREMENTS TO BE COMPLETED BY AIRBUS WITHIN 12 MONTHS OF THE ISSUE DATE OF THESE REPAIR. ACCOMPLISHED BY AVIANOR TECH# S010, M100 AND M109.(REFERENCES: /1/ AIRBUS CANADA REO 500-53-61-2496 /2/ YMX DAMAGE REPORT JB-3023-AOG-01 /3/ AIRBUS CANADA REO 500-53-61-956 (PREVIOUS REPAIR) /4/ REO 500-53-61-2502 (COVERED UNDER AC26-239-01) /5/ ECA-337 /6/ JBU DAMAGE REPORT /7/ MX-244 MAJOR REPAIR DESCRIPTION: ON 3/10/2026 A/C N3023J (MSN 55104) AT JFK, JFK MX REPORTED CORROSION DAMAGE ON THE REAR FUSELAGE SKIN AT WASTE ACCESS DOUBLER BETWEEN FR 74-77 & STGR 30LH-36RH. CORROSION AFFECTED THE AREA PREVIOUSLY REPAIRED UNDER EC AC23-1065-01 AND REF /3/ REO. SEE REF /6/ AND /2/ DAMAGE REPORTS FOR DETAILS. AC WAS FERRIED TO YMX TO PERFORM THE PERMANENT REPAIR UNDER REF /5/ ECA. CORROSION DAMAGE WAS BLENDED AND THE REMAINING THICKNESS MEASUREMENTS HAVE BEEN EVALUATED AGAINST ASRP WHERE NO ALLOWABLE LIMIT & REPAIRS ARE AVAILABLE. AIRBUS CANADA WAS CONTACTED FOR A PERMANENT REPAIR SOLUTION, THEY PROVIDED REF /1/ REO INSTRUCTIONS TO REMOVE THE REPAIR DOUBLER INSTALLED IN PAST AS PER REF/3/ REO, PERFORM THE CUT-OUT, FABRICATE & INSTALL DOUBLER AND TRIPLER AND RESTORE SURFACE PROTECTION. REF /1/ REO ALSO INSTRUCTED TO DO SB BD500-383007. THE THREE ADDITIONAL DAMAGES REPORTED ARE COVERED UNDER REF /4/ REO AND EC AC26-239-01. THIS EC AC26-237-01 IS ISSUED TO ACCOMPLISH TEMPORARY REPAIR IAW. REF /1/ REO WITHOUT DEVIATIONS. EC AC26-237-02 IS ISSUED TO TRACK THE PERMANENT REPAIR WHICH IS PENDING 12 MONTHS DTA AND WILL BE DUE ON 3/20/2027. NOTE- SINCE THE REF /1/ REO DIRECT TO REMOVE THE DOUBLER INSTALLED PER REF /3/ REO, THE REPETITIVE INSPECTION EC AC23-1065-02 AND PERMANENT REPAIR EC A23-1065-03 WILL BE CANCELLED. SUBSTANTIATION: THIS REPAIR IS APPROVED PER REF /1/ REO AND IS CLASSIFIED AS MAJOR. (E/C: AC26-243-01)